Article ID: CBB480002964

The maintenance of ambiguity in Martian exobiology (April 2022)

unapi

How do scientists maintain their research programs in the face of not finding anything? Continual failure to produce results can result in declining support, scientific controversy and credibility challenges. We elaborate on a crucial mechanism for sustaining the credibility of research programs through periods of non-detection: the maintenance of ambiguity. By this, we refer to scientific strategies that resist closure or an experiment’s premature end by creating doubt in negative findings and fostering hope for future positive results. To illustrate this concept, we draw upon the recent history of Martian exobiology. Since the 1960s, planetary scientists have continually tried and failed to find evidence of life on Mars. And yet, interest in extraterrestrial life detection remains high, with more missions to Mars underway. Through three destabilizing events of non-detection, we show how exobiologists sustained the search for Martian life by casting doubt on negative findings, pointing to other possible unexplored routes to success, and finally reconfiguring operations around new methods or goals. New approaches may take the form of shifts in scale, method and object of interest. By pivoting to a different scale, method or object, exobiologists have continued to study a subject continually lacking proof of existence and made important discoveries about life on Earth.

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Authors & Contributors
Sheehan, William
Messeri, Lisa Rebecca
Determann, Jörg Matthias
Dick, Steven J.
Geppert, Alexander C. T.
O'Meara, Stephen James
Journals
Journal of Astronomical History and Heritage
Social Studies of Science
Naturwissenschaftliche Rundschau
Science as Culture
Publishers
I. B. Tauris
Reaktion Books
Springer
CRC Press
Duke University Press
ESA publ. division
Concepts
Extraterrestrial life; exobiology
Astrobiology
Mars
Planetary science
Space research and exploration
Extrasolar planets; exoplanets
People
Lowell, Percival
Lederberg, Joshua
Slipher, Vesto Melvin
Schiaparelli, Giovanni Virginio
Tikhov, Gavriil Adrianovich
Time Periods
20th century
21st century
19th century
20th century, late
20th century, early
Early modern
Places
United States
Kazakhstan
Asia
Europe
Institutions
Lowell Observatory
Pulkovo Observatory
United States. National Aeronautics and Space Administration
Search for Extraterrestrial Intelligence (SETI) (Study group: U.S.)
Place
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